Question

A researcher is studying whether male is more likely to successfully communicate an automobile problem to the auto repairman than female. In his/her sample, one hundred women were polled and 60 reported successfully communicating an automobile problem to the auto repairman; 150 men had 95 reporting the same success. What is the critical value (α=0.01)?

a. 2.58.

b. 2.33.

c.

d.

Answer 1

Here,

alpha=0.01

The researcher studing whether male are more likely successful than female in communicate an automobile problem to the auto repairman.

From given information, it is two sample proportion test and its alternative hypothesis is one sided.

Now,

Critical value = Zalpha = Z0.01 = 2.33

option (b) is correct.